Muslims teach that Jesus will return and subordinate Himself to the Muslim Mahdi. Jesus will then perform a pilgrimage to Mecca and institute Sharia law worldwide. He will judge the world, but according to Islamic law, and He will destroy Christianity. After living on the earth for forty years, our Lord (their "prophet") will marry and have children, and die.
According to Islam, He will return and "break the Cross."
Yes, the way they describe Issa, he is the literal anti-Christ.